Observability Over Orchestration: Why Agent Systems Fail Without Visibility

While teams obsess over orchestration frameworks, real multi-agent AI systems fail due to inability to observe what's happening inside. After 30+ production waves, the actual bottleneck was never routing logic or retries—it was the lack of decision tracing, cascade failure detection, and per-agent cost tracking. Building observability infrastructure is far more critical to system stability than perfecting orchestration.